<div class="layui-fluid">
  <div class="layui-row">
    <div class="layui-col-xs12">
      <div class="layui-card">
        <div class="layui-card-header">上传-> 文档请参考：
          <a href="http://www.layui.com/doc/modules/upload.html" target="_blank">
            <span>http://www.layui.com/doc/modules/upload.html</span>
          </a>
        </div>
        <div class="layui-card-body">

          <blockquote class="layui-elem-quote">为节省服务器开销，以下示例均未配置真实上传接口，所以每次上传都会报提示：请求上传接口出现异常，这属于正常现象。</blockquote>

          <fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
            <legend>常规使用：普通图片上传</legend>
          </fieldset>

          <div class="layui-upload">
            <button type="button" class="layui-btn" id="test1_hash">上传图片</button>
            <div class="layui-upload-list">
              <img class="layui-upload-img" id="demo1_hash">
              <p id="demoText_hash"></p>
            </div>
          </div>

          <fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
            <legend>上传多张图片</legend>
          </fieldset>

          <div class="layui-upload">
            <button type="button" class="layui-btn" id="test2_hash">多图片上传</button>
            <blockquote class="layui-elem-quote layui-quote-nm" style="margin-top: 10px;">
              预览图：
              <div class="layui-upload-list" id="demo2_hash"></div>
            </blockquote>
          </div>

          <fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
            <legend>指定允许上传的文件类型</legend>
          </fieldset>

          <button type="button" class="layui-btn" id="test3_hash"><i class="layui-icon"></i>上传文件</button>
          <button type="button" class="layui-btn layui-btn-primary" id="test3_hash"><i class="layui-icon"></i>只允许压缩文件</button>
          <button type="button" class="layui-btn" id="test5_hash"><i class="layui-icon"></i>上传视频</button>
          <button type="button" class="layui-btn" id="test6_hash"><i class="layui-icon"></i>上传音频</button>
          <div style="margin-top: 10px;">

            <!-- 示例-970 -->
            <ins class="adsbygoogle" style="display:inline-block;width:970px;height:90px" data-ad-client="ca-pub-6111334333458862" data-ad-slot="3820120620"></ins>

          </div>
          <fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
            <legend>设定文件大小限制</legend>
          </fieldset>

          <button type="button" class="layui-btn layui-btn-danger" id="test7"><i class="layui-icon"></i>上传图片</button>
          <div class="layui-inline layui-word-aux">
            这里以限制 60KB 为例
          </div>

          <fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
            <legend>同时绑定多个元素，并将属性设定在元素上</legend>
          </fieldset>

          <button class="layui-btn demoMore" lay-data="{url: '/a/'}">上传A</button>
          <button class="layui-btn demoMore" lay-data="{url: '/b/', size:5}">上传B</button>
          <button class="layui-btn demoMore" lay-data="{url: '/c/', accept: 'file',size:10}">上传C</button>

          <fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
            <legend>选完文件后不自动上传</legend>
          </fieldset>

          <div class="layui-upload">
            <button type="button" class="layui-btn layui-btn-normal" id="test8">选择文件</button>
            <button type="button" class="layui-btn" id="test9">开始上传</button>
          </div>
          <fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
            <legend>拖拽上传</legend>
          </fieldset>

          <div class="layui-upload-drag" id="test10">
            <i class="layui-icon"></i>
            <p>点击上传，或将文件拖拽到此处</p>
          </div>

          <fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
            <legend>高级应用：制作一个多文件列表</legend>
          </fieldset>

          <div class="layui-upload">
            <button type="button" class="layui-btn layui-btn-normal" id="testList">选择多文件</button>
            <div class="layui-upload-list">
              <table class="layui-table">
                <thead>
                  <tr>
                    <th>文件名</th>
                    <th>大小</th>
                    <th>状态</th>
                    <th>操作</th>
                  </tr>
                </thead>
                <tbody id="demoList"></tbody>
              </table>
            </div>
            <button type="button" class="layui-btn" id="testListAction">开始上传</button>
          </div>

          <fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
            <legend>绑定原始文件域</legend>
          </fieldset>

          <input type="file" name="file" id="test20">

        </div>
      </div>
    </div>
  </div>
</div>


<script>
  layui.use('upload', function() {
    var $ = layui.jquery,
      upload = layui.upload;

    //普通图片上传
    var uploadInst = upload.render({
      elem: '#test1_hash',
      url: '/upload/',
      before: function(obj) {
        //预读本地文件示例，不支持ie8
        obj.preview(function(index, file, result) {
          $('#demo1_hash').attr('src', result); //图片链接（base64）
        });
      },
      done: function(res) {
        //如果上传失败
        if (res.code > 0) {
          return layer.msg('上传失败');
        }
        //上传成功
      },
      error: function() {
        //演示失败状态，并实现重传
        var demoText = $('#demoText_hash');
        demoText.html('<span style="color: #FF5722;">上传失败</span> <a class="layui-btn layui-btn-mini demo-reload">重试</a>');
        demoText.find('.demo-reload').on('click', function() {
          uploadInst.upload();
        });
      }
    });

    //多图片上传
    upload.render({
      elem: '#test2_hash',
      url: '/upload/',
      multiple: true,
      before: function(obj) {
        //预读本地文件示例，不支持ie8
        obj.preview(function(index, file, result) {
          $('#demo2_hash').append('<img src="' + result + '" alt="' + file.name + '" class="layui-upload-img">')
        });
      },
      done: function(res) {
        //上传完毕
      }
    });

    //指定允许上传的文件类型
    upload.render({
      elem: '#test3_hash',
      url: '/upload/',
      accept: 'file' //普通文件
        ,
      done: function(res) {
        console.log(res)
      }
    });
    upload.render({ //允许上传的文件后缀
      elem: '#test3_hash',
      url: '/upload/',
      accept: 'file' //普通文件
        ,
      exts: 'zip|rar|7z' //只允许上传压缩文件
        ,
      done: function(res) {
        console.log(res)
      }
    });
    upload.render({
      elem: '#test5_hash',
      url: '/upload/',
      accept: 'video' //视频
        ,
      done: function(res) {
        console.log(res)
      }
    });
    upload.render({
      elem: '#test6_hash',
      url: '/upload/',
      accept: 'audio' //音频
        ,
      done: function(res) {
        console.log(res)
      }
    });

    //设定文件大小限制
    upload.render({
      elem: '#test7',
      url: '/upload/',
      size: 60 //限制文件大小，单位 KB
        ,
      done: function(res) {
        console.log(res)
      }
    });

    //同时绑定多个元素，并将属性设定在元素上
    upload.render({
      elem: '.demoMore',
      before: function() {
        layer.tips('接口地址：' + this.url, this.item, {
          tips: 1
        });
      },
      done: function(res, index, upload) {
        var item = this.item;
        console.log(item); //获取当前触发上传的元素，layui 2.1.0 新增
      }
    })

    //选完文件后不自动上传
    upload.render({
      elem: '#test8',
      url: '/upload/',
      auto: false
        //,multiple: true
        ,
      bindAction: '#test9',
      done: function(res) {
        console.log(res)
      }
    });

    //拖拽上传
    upload.render({
      elem: '#test10',
      url: '/upload/',
      done: function(res) {
        console.log(res)
      }
    });

    //多文件列表示例
    var demoListView = $('#demoList'),
      uploadListIns = upload.render({
        elem: '#testList',
        url: '/upload/',
        accept: 'file',
        multiple: true,
        auto: false,
        bindAction: '#testListAction',
        choose: function(obj) {
          var files = this.files = obj.pushFile(); //将每次选择的文件追加到文件队列
          //读取本地文件
          obj.preview(function(index, file, result) {
            var tr = $(['<tr id="upload-' + index + '">', '<td>' + file.name + '</td>', '<td>' + (file.size / 1014).toFixed(1) + 'kb</td>', '<td>等待上传</td>', '<td>', '<button class="layui-btn layui-btn-mini demo-reload layui-hide">重传</button>', '<button class="layui-btn layui-btn-mini layui-btn-danger demo-delete">删除</button>', '</td>', '</tr>'].join(''));

            //单个重传
            tr.find('.demo-reload').on('click', function() {
              obj.upload(index, file);
            });

            //删除
            tr.find('.demo-delete').on('click', function() {
              delete files[index]; //删除对应的文件
              tr.remove();
              uploadListIns.config.elem.next()[0].value = ''; //清空 input file 值，以免删除后出现同名文件不可选
            });

            demoListView.append(tr);
          });
        },
        done: function(res, index, upload) {
          if (res.code == 0) { //上传成功
            var tr = demoListView.find('tr#upload-' + index),
              tds = tr.children();
            tds.eq(2).html('<span style="color: #5FB878;">上传成功</span>');
            tds.eq(3).html(''); //清空操作
            return delete this.files[index]; //删除文件队列已经上传成功的文件
          }
          this.error(index, upload);
        },
        error: function(index, upload) {
          var tr = demoListView.find('tr#upload-' + index),
            tds = tr.children();
          tds.eq(2).html('<span style="color: #FF5722;">上传失败</span>');
          tds.eq(3).find('.demo-reload').removeClass('layui-hide'); //显示重传
        }
      });

    //绑定原始文件域
    upload.render({
      elem: '#test20',
      url: '/upload/',
      done: function(res) {
        console.log(res)
      }
    });

  });
</script>

<style scoped>

</style>